package com.atguigu.lease.web.app.custom.interceptor;

import com.atguigu.lease.common.context.LoginUser;
import com.atguigu.lease.common.context.LoginUserContext;
import com.atguigu.lease.common.exception.LeaseException;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.utils.JwtUtil;
import io.jsonwebtoken.Claims;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.servlet.HandlerInterceptor;

@Component
public class AuthenticationInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request,HttpServletResponse response,Object handler) throws Exception {

        String token = request.getHeader("access_token");
        if(!StringUtils.hasText(token)){
            throw new LeaseException(ResultCodeEnum.ADMIN_LOGIN_AUTH);
        }
        Claims claims= JwtUtil.parseToken(token);
        Long userId=claims.get("userId",Long.class);
        String username=claims.get("username",String.class);
        LoginUser loginUser = LoginUser.builder().userId(userId).username(username).build();
        LoginUserContext.threadLocal.set(loginUser);
        return true;
    }

    @Override
    public void afterCompletion(HttpServletRequest request,HttpServletResponse response,Object handler,Exception ex) throws Exception {
        LoginUserContext.threadLocal.remove();
    }
}
